154254121 has 4 divisors (see below), whose sum is σ = 176290432. Its totient is φ = 132217812.

The previous prime is 154254091. The next prime is 154254127. The reversal of 154254121 is 121452451.

154254121 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 154254121 - 2⁷ = 154253993 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (154254127) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 11018145 + ... + 11018158.

It is an arithmetic number, because the mean of its divisors is an integer number (44072608).

Almost surely, 2^154254121 is an apocalyptic number.

It is an amenable number.

154254121 is a deficient number, since it is larger than the sum of its proper divisors (22036311).

154254121 is an equidigital number, since it uses as much as digits as its factorization.

154254121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22036310.

The product of its digits is 1600, while the sum is 25.

The square root of 154254121 is about 12419.9082524792. The cubic root of 154254121 is about 536.3055094017.

The spelling of 154254121 in words is "one hundred fifty-four million, two hundred fifty-four thousand, one hundred twenty-one".